Psychotic disorder refers to a mental illness that affects a person's ability to think logically and communicate effectively. Some common synonyms for psychotic disorder include schizophrenia, delusional disorder, bipolar disorder, major depressive disorder with psychotic features, and substance-induced psychotic disorder. These conditions are characterized by symptoms such as hallucinations, delusions, disorganized speech and behavior, and impaired social and occupational functioning. Treatment for psychotic disorders usually involves a combination of medication and psychotherapy. It is important to seek professional help if you or someone you know is experiencing symptoms of a psychotic disorder to ensure proper diagnosis and treatment.